Water

I've done this before, here. But I did it differently this time.
 Previously, I took long shutter shots, but you can only do that when it's pretty dark, or it gets really washed out.
This time I did layering, where I took about 20 shots, and used some photo editing software (Not photoshop) to put them on top of each other, and made them opaque, so you could see through.

This doesn't look that great, but there are more interesting things I can try.